22Keys, doors and windows
Depending on model, the vehicle mayuse a 2 button or 3 button remote
control or an electronic key which
includes the functionality of the radio
remote control.
Electronic key system 3 23.
Fault
If the central locking system cannot
be operated with the remote control,
it may be due to the following:
■ Range exceeded
■ Battery voltage too low
■ Frequent, repeated operation of the
remote control while not in range,
which will require reprogramming
by a workshop
■ Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time
■ Interference from higher-power radio waves from other sources
Manual key operation 3 25.Remote control battery
replacement
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
2-button and 3-button remote control
Remove screw and open battery
compartment by inserting a coin into
the slot and twisting.
Keys, doors and windows23
Replace the battery (battery type
CR 2016), paying attention to the installation position.
Reattach both halves of the cover,
ensuring they engage correctly.
Replace screw and tighten.
Electronic key
The need for battery replacement is
indicated by a message in the Driver
Information Centre 3 91.
Press and hold the release button on
the side of the electronic key and pull out the emergency manual key from
the top. Unclip the battery cover
located on the rear of the electronic
key, then press one side of the battery
to release and remove the battery.
Replace the battery (battery type
CR 2016), paying attention to the
installation position.
Reattach battery cover and reinsert
the emergency manual key.
Electronic key synchronisation
Press any button on the electronic
key four times within range of the
detection zone (approx. one metre) of the front doors or load compartment.
The electronic key will be
synchronised when the ignition is
switched on.Electronic key system
Enables a handsfree operation of the following functions:
■ Central locking system 3 25
■ Load compartment 3 33
■ Ignition switching on and starting the engine 3 114
The electronic key simply needs to be on the driver's person.
24Keys, doors and windows
Note
Always take the electronic key with
you when exiting the vehicle.
The electronic key being left in the
card reader is indicated by a warning chime 3 91 and a message in the
Driver Information Centre 3 91
when the driver's door is opened.
Additionally, the electronic key
includes the functionality of the radio
remote control 3 21 and an entry
lighting function 3 100.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment during driving, as
this is outside of the detection zone
(indicated by a warning chime at low
speed 3 91 and a message in the
Driver Information Centre 3 91).
Handsfree operation is automatically
disabled when the electronic key
buttons have been operated or thecentral locking switch e 3 25 is
pressed. To re-enable handsfree
operation, restart the engine.
Power button 3 114.
Replacing battery in electronic
key Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for
battery replacement is indicated by a
message in the Driver Information
Centre 3 91.
Battery replacement, see Radio
remote control 3 21.
Fault
If the central locking system cannot
be operated or the engine cannot be
started, the cause may be one of the
following:
■ Fault in electronic key.
■ Electronic key out of reception range.
■ Battery voltage too low.■ Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
■ Interference from higher-power radio waves from other sources.
Emergency manual key
Press and hold the release button on
the side of the electronic key and pull out the emergency manual key from
the top.
Manually lock or unlock the doors by turning the key in the lock.
Keys, doors and windows37
Activation without monitoring of
passenger compartment
Disable monitoring of the passenger
compartment, e.g. when animals are
being left in the vehicle, or if the
auxiliary heater has been set for a
timed or remote controlled start
3 106.
Press and hold button e on the
remote control or electronic key; an
audible signal will sound as
confirmation.
The status will remain until the doors
are unlocked.
AlarmWhen triggered, the alarm sounds via
a separate battery-backed power
sounder, and the hazard warning
lights flash simultaneously. The
number and duration of alarm signals are stipulated by legislation.
If the vehicle battery is disconnected
or its power supply is interrupted, the
alarm siren will be triggered. First
deactivate the anti-theft alarm system
if the vehicle battery must be
disconnected.To silence the alarm siren (if
triggered) and therefore deactivate
the anti-theft alarm system, reconnect vehicle battery and unlock the vehicle
or switch on the ignition.
Immobiliser
The immobiliser is part of the ignition
switch and checks whether the
vehicle is allowed to be started with
the key being used.
The immobiliser is activated
automatically after the key has been
removed from the ignition switch and
also if the key is left in the ignition
switch when the engine is turned off.
If the engine cannot be started, switch off the ignition and remove key, wait
approx. 2 seconds and then repeat
the start attempt. If start attempt is
unsuccessful, attempt to start the
engine using the spare key and seek
the assistance of a workshop.Note
The immobiliser does not lock the doors. You should always lock the
vehicle after leaving it and switch on the anti-theft alarm system 3 25,
3 35.
Instruments and controls79
Press and hold the button for approx.
5 seconds:
■ Hours flash
■ Press button repeatedly to change hours
■ Wait for approx. 5 seconds to set hours
■ Minutes flash
■ Press button repeatedly to change minutes
■ Wait for approx. 5 seconds to set minutes.
Driver Information Centre 3 90.Power outlets
12 V power outlets are located on the
instrument panel and in the rear of the vehicle.
Connecting electrical accessories while the engine is off will discharge
the vehicle battery. Do not exceed the
maximum power consumption of
120 Watts. Do not connect any
current-delivering accessories, e.g.
electrical charging devices or
batteries.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.Caution
Do not connect any current- delivering accessories, e.g.
electrical charging devices or
batteries.
Do not damage the sockets by
using unsuitable plugs.
Cigarette lighter
86Instruments and controls
If both control indicators ÓON and
* OFF are illuminated
simultaneously, there is a system
failure. The status of the system is not discernible, therefore no person is
permitted to occupy the front
passenger seat. Contact a workshop immediately.
If illuminated in conjunction with v or
F , seek the assistance of a workshop.9 Danger
Risk of fatal injury for a child using
a child restraint system together
with activated front passenger
airbag.
Risk of fatal injury for an adult
person with deactivated front
passenger airbag.
Airbag system 3 53, belt tensioners
3 50, airbag deactivation 3 58.
Charging system p illuminates red.
Illuminates briefly when the ignition is
switched on.
Illuminates when the engine is
running
If control indicator p illuminates
when the engine is running (together
with control indicator C and a
warning chime): Stop, switch off
engine.
Vehicle battery is not charging.
Engine cooling may be interrupted.
Power to the brake servo unit may be
cut. Seek the assistance of a
workshop.
Malfunction indicator light Z illuminates or flashes yellow.
Illuminates briefly when the ignition is
switched on.
Illuminates when the engine is running Fault in the emission control system.
The permitted emission limits may be
exceeded. Seek the assistance of a
workshop immediately.Flashes when the engine is
running
Fault that could lead to catalytic
converter damage. Ease up on the
accelerator until the flashing stops.
Seek the immediate assistance of a
workshop.
Service vehicle soon F illuminates in yellow.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
May illuminate together with other
control indicators and a
corresponding message in the Driver
Information Centre. Seek the
assistance of a workshop
immediately.
Stop engine C illuminates in red.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Instruments and controls91Vehicle messages
Messages are displayed in the Driver
Information Centre and may be
accompanied by illumination of
control indicator F or C in the
instrument cluster.
Information messages Information messages regarding,
e.g. engine starting conditions, stop-
start system, parking brake
application, central locking, steering
wheel lock etc. provide the current
status of certain vehicle functions and
instructions for use.
Fault messages Fault messages regarding, e.g. fuel
filter, airbags, exhaust emissions etc.
are displayed together with control
indicator F. Drive with caution and
seek the assistance of a workshop as
soon as possible.
To remove fault messages from the
display, press button on end of wiper
lever. After a few seconds the
message may disappearautomatically and F remains
illuminated. The fault will then be
stored in the on board system.
Warning messagesWarning messages regarding, e.g.
engine, battery or brake system
failure, are displayed together with
control indicator C and may be
accompanied by a warning chime.
Stop engine immediately and seek
the assistance of a workshop.
Fuel economy messages
Fuel economy messages provide tips to improve fuel efficiency. Journeys
can be saved in the system memory,
enabling you to compare
performances.
Refer to Infotainment system manual
for further information.
Fuel economy rating 3 92.
Warning chimes
A corresponding message may also
appear in the Driver Information
Centre when a warning chime is
sounded.When starting the engine or
whilst driving: ■ If seat belt is not fastened 3 50.
■ During operation of the turn and lane-change signals 3 97.
■ During illumination of certain control indicators.
■ If the parking assist detects an object 3 130.
■ If the vehicle speed briefly exceeds
a set limit 3 126, 3 130.
■ If a door or the bonnet is not properly closed when vehicle
exceeds a certain speed.
■ If there is a fault in the brake system
3 87.
■ If the vehicle battery is not charging
3 86.
■ If engine lubrication is interrupted 3 88.
■ If the electronic key is outside of the
detection range.
Electronic key system 3 23, Power
button 3 114.
94Instruments and controls
■ Distance travelled
■ Fuel saved in km
Unit of measurement
To change the unit of measurement
for the duration of a journey:
With ignition off, simultaneously press
the power button 3 114 and press
and hold button on end of wiper lever; the Driver Information Centre flashes
for approx. 10 seconds until the new
unit is displayed. Release button on
end of wiper lever.
When the engine is switched off, the trip computer automatically returns to the original unit of measurement.
Interruption of power supply
If the power supply has been
interrupted or if the vehicle battery
voltage has dropped too low, the
values stored in the trip computer will be lost.Tachograph
The tachograph is operated as
described in the operating
instructions supplied. Observe
regulations regarding use.